Accidently mergered same tree not twice but THREE times.

Accidently mergered same tree not twice but THREE times.

Using Lineage Software Tree. I recently opened the tree and some how when I went back I added the same tree again and for some unknown reason I did it again. (not paying close attention I guess)

Well know all my names are tripled in the same tree Went from 2500 names to 7500 names eeeeekkkk. Is there a simple way to remove them. Do I have to I have just been deleting the repeat names since I knew how many I had when I first opened it that day. and then I do a backup.

OR should I be merging each one twice? Any simple solutions this is taking forever and I am afraid to add any new names for fear the RIN number while be in the high digits and accidently delete them.

Sorry so long. But THANK YOU to anyone can give me some calming advice.

It will give me a duplicate report in EXCEL, but no clue how to delete it from Excel and resubmit to software